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Home > Duplex Steel > Duplex Steel Tubing S31803
Rashdan Pipes and Tubes, a trusted manufacturer and supplier based in Amman, Jordan, is renowned for offering high-quality Duplex Steel Tubing S31803 to diverse industries across the region. With a commitment to excellence, the company ensures every product meets international standards for durability, precision, and performance. Duplex Steel S31803 tubing supplied by Rashdan Pipes and Tubes is engineered to deliver superior corrosion resistance, high strength, and reliable service life even in demanding environments. Supported by advanced manufacturing processes and strict quality control, the company continues to provide dependable solutions that meet the evolving needs of oil & gas, chemical, and marine sectors.
This Duplex Steel Tubing S31803 is made up of chromium (21–23%), nickel (4.5–6.5%), molybdenum (2.5–3.5%), nitrogen, and trace elements, creating a well-balanced microstructure of austenite and ferrite. It boasts high mechanical strength, impressive corrosion resistance, and superior toughness compared to regular stainless steels. With a tensile strength of about 620 MPa and a yield strength exceeding 450 MPa, it offers remarkable resistance to stress corrosion cracking, pitting, and crevice corrosion, making it a reliable choice for demanding industrial applications.
| Standard | : | ASTM A790 / ASME SA790 UNS S31803, S32205, S32550, S32750, S32760 |
| Materials | : | ASTM A815 – UNS S31803 |
| Size | : | 1/2″NB TO 12 “NB IN |
| Seamless Pipes & Tubes Sizes | : | 1/2” NB – 8” NB |
| Welded Pipes & Tubes Sizes | : | 6” NB – 24” NB |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80 |
| Type | : | Welded / Fabricated / Seamless |
| Length | : | Single Random, Double Random & Cut Length. |
| Thickness | : | 0.5-45mm |
| Outer Diameter | : | 6.0-630mm |
| Dimensions | : | OD(6.0-630)*WT(0.5-45)mm |
| Duplex Steel | Ni | Fe | C | Mn | Si | Mo | Cr | P | S |
| Bal | 0.03 | 1.o | 3.0 – 3.5 | 2.0 | 22.0 – 23.0 | 4.5 – 6.5 | 0.02 | 0.14 – 0.2 |
| STANDARD | UNS | WERKSTOFF NR. |
| Duplex Steel | S31803 | 1.4462 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000 , MPa – 800 | Psi – 80000 , MPa – 550 | 15 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Duplex Steel Tubing S31803 from Rashdan Pipes and Tubes ensures superior quality and durability, offering outstanding corrosion resistance and high strength. Our dedication to delivering exceptional service and reliable products guarantees customer satisfaction across a wide range of industrial applications. With our expertise in Duplex steel solutions, you can trust us to provide a top-tier, customized piping solution that meets your specific requirements.
Duplex Steel S31803 Tubing is composed of approximately 21–23% chromium, 4.5–6.5% nickel, 2.5–3.5% molybdenum, and nitrogen for enhanced strength. It offers a balanced ferritic-austenitic structure, providing excellent pitting and crevice corrosion resistance. Mechanical properties include high tensile strength (around 620 MPa), yield strength (minimum 450 MPa), and good elongation. It also has strong fatigue resistance, high toughness, and exceptional stress corrosion cracking resistance.
Yes, we provide custom sizes for Duplex Steel Tubing S31803 to meet your specific requirements. At Rashdan Pipes and Tubes, our team is dedicated to delivering tailored solutions for all your piping and tubing needs. For more information, please contact us at sales@rashdanpipes.com.
Duplex Steel Tubing S31803 finds extensive use in industries that require both high strength and corrosion resistance. In the oil and gas sector, it’s commonly used in pipelines, risers, and subsea equipment due to its ability to endure seawater and chloride-induced stress. The chemical and petrochemical industries rely on it for heat exchangers, process piping, and pressure vessels. Additionally, it’s utilized in marine applications, power plants, and desalination plants where durability and resistance to harsh environments are crucial. The long service life and cost-effectiveness of this tubing make it a favored material for critical operations.
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